Java - Groovy tags/keywords

The Groovy NewInstanceMetaMethod.java source code

/*
* Copyright 2003-2007 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.codehaus.groovy.runtime.metaclass;
import org.codehaus.groovy.reflection.CachedMethod;
import java.lang.reflect.Modifier;
/**
* A MetaMethod implementation where the underlying method is really a static
* helper method on some class but it appears to be an instance method on a class.
*
* This implementation is used to add new methods to the JDK writing them as normal
* static methods with the first parameter being the class on which the method is added.
*
* @author <a href="mailto:james@coredevelopers.net">James Strachan
* @version $Revision: 8959 $
*/
public class NewInstanceMetaMethod extends NewMetaMethod {
public NewInstanceMetaMethod(CachedMethod method) {
super(method);
}
public boolean isStatic() {
return false;
}
public int getModifiers() {
// lets clear the static bit
return Modifier.PUBLIC;
}
public Object invoke(Object object, Object[] arguments) {
// we need to cheat using the type
int size = arguments.length;
Object[] newArguments = new Object[size + 1];
newArguments[0] = object;
System.arraycopy(arguments, 0, newArguments, 1, size);
return super.invoke(null, newArguments);
}
}

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